Title :
2-MHz clocked LCD drivers on glass
Author :
De Rycke, Igor ; Van Calster, André ; Vanfleteren, Jan ; De Baets, Johan ; Doutreloigne, Jan ; De Smet, Herbert ; Vetter, Peter
Author_Institution :
Lab. of Electron., Ghent State Univ., Belgium
fDate :
4/1/1990 12:00:00 AM
Abstract :
A poly-CdSe thin-film transistor (TFT) liquid crystal display (LCD) driver circuit which is integrated on the display itself, reducing the interconnections to the display, is described. The circuit can be used to drive the rows as well as the columns of active and passive matrix LCDs. Drivers made in a 25-μm technology operate at frequencies up to 2 MHz. Simulations indicate a maximum operating frequency of 8 MHz for a 12.5-μm technology. By using a time-multiplexing addressing scheme, gray scales can be obtained. In order to address high-resolution displays with gray scales, parallel operating drivers can be used, requiring only one extra connection per parallel driver
Keywords :
II-VI semiconductors; MOS integrated circuits; cadmium compounds; driver circuits; liquid crystal displays; thin film transistors; 12.5 micron; 2 MHz; 25 micron; 8 MHz; LCD drivers; TFT; active matrix type; column driving; glass substrate; gray scales; high-resolution displays; liquid crystal display; parallel operating drivers; passive matrix; polycrystalline CdSe technology; row driving; thin-film transistor; time-multiplexing addressing scheme; Active matrix technology; Circuit simulation; Clocks; Driver circuits; Frequency; Glass; Integrated circuit interconnections; Integrated circuit technology; Liquid crystal displays; Thin film transistors;
Journal_Title :
Solid-State Circuits, IEEE Journal of
